{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "cell type", "RNA", "cell line", "DNA"], "input": "The B cell-specific nuclear factor OTF-2 positively regulates transcription of the human class II transplantation gene , DRA ."}
{"protein": ["B cell-specific nuclear factor", "OTF-2"], "cell type": [], "RNA": [], "cell line": [], "DNA": ["human class II transplantation gene", "DRA"]}